Joseph Levinson contributed extensively to:
- Revival of Lithuania’s Jewish Community (LJC)’ – was for many years an active LJC Board member .
- Discovering and marking mass graves of Lithuanian Jews (worked closely with local municipalities in finding and marking mass graves of Holocaust massacre; documented the work done which resulted in The Book of Sorrow).
- Inspecting, inventorizing and bringing into order the desolated old Jewish cemeteries of Lithuania (worked closely with local municipalities in finding and marking them; part of the abovementioned work done was presented in The Book of Sorrow).
- Mounting major unique historic exhibitions including “Jews in fight against Fascism” and “Jews’ mass massacre places in Lithuania”; created his own concept on the exhibition of Butrimonys (Yiddish Butrimánts).
- Combating Holocaust Revisionism and the theory of “Double Genocide” with the facts (wrote about it in the book The Shoah in Lithuania, 2006, before the topic became internationally explosive).
- Participated in publishing the LJC newspaper Jerusalem of Lithuania (was for a while the editor of the newspaper, wrote articles, organized the translation of the newspaper into Yiddish).
- Actively participated in the work of the Jewish Museum and its Holocaust Section (the Green House) almost from the very beginning.